1000000000 (number)

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List of numbers - Integers

100000000 1000000000 10000000000

Cardinal One billion
Ordinal One billionth
Factorization 29 ยท 59
Binary 111011100110101100101000000000
Hexadecimal 3B9ACA00

One thousand million (1,000,000,000) is the natural number following 999,999,999 and preceding 1,000,000,001.

In (modern, common) English language usage, it is usually called a billion. (Though in many other languages, a billion means a million millions (or 1,000,000,000,000), instead of the English thousand million.) A milliard can also be used to refer to 1,000,000,000, though this terminology is rarely used in the English language, but often in other languages.

In scientific notation, it is written as 109. Physical quantities can be expressed using the SI prefix giga.

See Orders of magnitude (numbers) for larger numbers.

[edit] Selected 10-digit numbers (1000000001 - 9999999999)

  • 1023456789 - smallest pandigital number
  • 1073676287 - Carol number
  • 1073741824 = 2^30
  • 1073807359 - Kynea number
  • 1111111111 - repunit
  • 1129760415 - Motzkin number
  • 1134903170 - Fibonacci number
  • 1162261467 = 3^19
  • 1220703125 = 5^12
  • 1234567890 - pandigital number with the digits in order
  • 1311738121 - Pell number
  • 1382958545 - Bell number
  • 1406818759 - Wedderburn-Etherington number
  • 1836311903 - Fibonacci number
  • 1977326743 = 7^11
  • 2147483647 - Mersenne prime
  • 2147483648 = 2^31
  • 2214502422 - primary pseudoperfect number
  • 2222222222 - repdigit
  • 2357947691 = 11^9
  • 2971215073 - Fibonacci prime
  • 3166815962 - Pell number
  • 3192727797 - Motzkin number
  • 3323236238 - Wedderburn-Etherington number
  • 3333333333 - repdigit
  • 3486784401 = 3^20
  • 4294836223 - Carol number
  • 4294967296 = 2^32
  • 4295098367 - Kynea number
  • 4444444444 - repdigit
  • 4807526976 - Fibonacci number
  • 5555555555 - repdigit
  • 5784634181 - alternating factorial
  • 6210001000 - the only self-descriptive number in base 10
  • 6227020800 = 13!
  • 6666666666 - repdigit
  • 6983776800 - colossally abundant number
  • 7645370045 - Pell number
  • 7777777777 - repdigit
  • 7778742049 - Fibonacci number
  • 7862958391 - Wedderburn-Etherington number
  • 8589934592 = 2^33
  • 8888888888 - repdigit
  • 9043402501 - Motzkin number
  • 9814072356 - largest square pandigital number, largest pandigital pure power
  • 9876543210 - largest pandigital number without redundant digits
  • 9999999999 - repdigit

[edit] Sense of scale

The facts below give a sense of how large one billion (one thousand million, 109) is in the context of passage of time.

In terms of distance:

In terms of count:

Image:Billion-cubes.svg

A is a cube; B consists of 1000 cubes of type A. C consists of 1000 Bs; and D 1000 Cs. Thus there are 1 million As in C; and 1 billion As in D. Likewise, there are a billion cubic millimeters in a cubic meter.cs:Miliarda es:Millardo ko:1000000000 it:Miliardo zh:1000000000

1000000000 (number)

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